Japanese people often fail to understand why neighbouring countries harbour a grudge over events that happened in the 1930s and 40s. The reason, in many cases, is that they barely learned any 20th Century history. I myself only got a full picture when I left Japan and went to school in Australia. From Homo erectus to the present day - more than a million years of history in just one year of lessons. That is how, at the age of 14, I first learned of Japan's relations with the outside world. For three hours a week - 105 hours over...